Challenges of Malaria Diagnosis in Paediatric Patients at a Nigerian Hospital
Journal Title: International Journal of TROPICAL DISEASE & Health - Year 2015, Vol 5, Issue 4
Abstract
Aims: This study compares the performance of routine malaria diagnostic tests, and explores the challenges of malaria diagnosis in paediatric patients in an endemic setting in South West Nigeria. Study Design: Cross sectional study Place and Duration of the Study: The study was conducted at the children’s outpatient and emergency units of the University College Hospital, Ibadan, Nigeria. Patients seen between May and August, 2013 were enrolled in the study. Methodology: The records of all 532 children aged six months to12 years who received treatment for an acute febrile illness at the hospital during the study period were reviewed. The proportion of children classified as having malaria by clinical diagnosis, Rapid Diagnostic Test (RDT) and blood smear microscopy were compared. Factors associated with test positivity were explored using multivariate analysis. Results: By clinical diagnosis 45.2% of children were diagnosed as having malaria, 37.6% tested positive to malaria parasite on RDT and 19.3% had positive blood smears on microscopy. Logistic regression showed that with RDTs, younger children were less often found to be positive than older children [OR: 0.594 (0.401-0.879)]. A similar lower probability of positivity was found for younger children on microscopy [OR0.624 (0.391-0.996)]. Positive smears were however recorded 3.9 times more often for those who gave a history of fever compared to those who did not [OR: 3.882 (1.154-13.057)]. Conclusion: The true malaria morbidity among these paediatric patients remains questionable due to the differences in the results produced by the different diagnostic methods. The clinical implication of RDT-positive but microscopy-negative samples may be grave if microscopy results are erroneous. Quality control systems and surveillance of routine malaria diagnostics are imperative to limit misdiagnosis of malaria in this endemic setting.
Authors and Affiliations
R. E. Oladokun, O. K. Ige, B. Ogunbosi
Keywords
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- EP ID EP343462
- DOI 10.9734/IJTDH/2015/9965
- Views 40
- Downloads 0
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